- Hate to be the one to tell you, Tigger, but you're not related to zebras.
- Why, we're first cousins. Just look at these stripes.
- Don't see how you can be with a tail like that. Far too long.

15 seconds sound clip from The New Adventures of Winnie the Pooh - King of the Beasties / The Rats Who Came to Dinner (S1E17).

You can hear this line at 00:01:46.625 in the Blu-ray version of the TV Series.

Quote context

[...]

- Oh. I rather thought I was related to bees, since we both like honey so.

- Hoo. There's my noble cousin the eagle.

- What about me, Christopher Robin?

- Wait a minute. There's got to be a tigger relative in there somewheres. Like, um, there, for example.

- Hello, cousin.

- Hate to be the one to tell you, Tigger, but you're not related to zebras.

- Why, we're first cousins. Just look at these stripes.

- Don't see how you can be with a tail like that. Far too long.

- Definitely not a zebra's tail.

- I'm not related to... to nobody.

- Well, Tigger, well, you're sort of related to a... to...

- To him?

- I'm related to this lion, isn't I, Christopher Robin?

- Well, I guess you are, sort of.

[...]